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C24000 Brass vs. R30605 Cobalt

C24000 brass belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C24000 brass and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 42
81
Tensile Strength: Ultimate (UTS), MPa 310 to 640
1130 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Melting Completion (Liquidus), °C 1000
1410
Melting Onset (Solidus), °C 970
1330
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 140
9.6
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 34
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.6
Embodied Carbon, kg CO2/kg material 2.6
9.8
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 320
450

Common Calculations

Stiffness to Weight: Axial, points 7.2
12
Stiffness to Weight: Bending, points 19
21
Strength to Weight: Axial, points 10 to 21
33 to 55
Strength to Weight: Bending, points 12 to 20
25 to 36
Thermal Diffusivity, mm2/s 43
2.5
Thermal Shock Resistance, points 10 to 22
31 to 52

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 78.5 to 81.5
0
Iron (Fe), % 0 to 0.050
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 18.2 to 21.5
0
Residuals, % 0 to 0.2
0